Quote: (Originally Posted by
Keiron)

I've got a 400BZ on order, but one thing was concerning me and an email to Marcin has so far gone unanswered.
It was concerning the ribbing at waist and armpits, now at least from the OP very informative post I know that it's Thinsulate 150, and not just simple elastic material. However, the armpits and waist are one of the major areas of heat loss after the head, so is the heat retention capabilities of this undergarment being severely compromised by the need for flexibility. Also, the backs of the knees are again another area of high heat loss and losing insulation here as in the OP post can't be good?
Thanks for the comment

I was thinking a bit how I felt while diving it - and I can not recall feeling cool at those areas. Maybe it is enough material anyway - normally I have my knees and arms bent slightly, the material is "piled up" so there is a insulating layer. So maybe that is the "solution" with "compromise". Anyway - there is a thiner Thisnulate at those areas.
